Senior Network Architect
3B Staffing LLC
seeking a Senior Network Architect (Subject Matter Expert) to support a key customer initiative. This role requires deep technical expertise in enterprise routing and modern data center networking, combined with a strong operational mindset.
The ideal candidate is a hands-on architect who can design, implement, and support complex network environments while maintaining stability in live production systems. This individual will play a critical role in shaping network strategy, driving innovation, and ensuring high availability across enterprise infrastructure. Key Responsibilities- Own and evolve enterprise routing architecture with a focus on BGP and OSPF, including policy design, traffic engineering, and convergence optimization
- Design and operate modern data center fabrics (spine-leaf architectures, VXLAN/EVPN) with integration into cloud and virtualized environments
- Lead and execute complex network changes and migrations with minimal to zero service disruption
- Serve as a top-tier escalation point, driving issues from initial symptoms to root cause across network, security, and application layers
- Perform deep packet and protocol analysis using tools such as Wireshark and PCAP
- Design and enhance network segmentation, access control, and visibility, leveraging tools like Cisco ISE and Gigamon
- Integrate and support secure access and edge solutions (e.g., Zscaler, Cisco FTD)
- Evaluate existing network environments and recommend improvements for performance, scalability, and operational efficiency
Balance architectural leadership with hands-on engineering and troubleshooting
Required Qualifications
Demonstrated CCIE-level expertise (certification not required)
Extensive experience designing and supporting large-scale enterprise networks
Advanced knowledge of BGP, OSPF, and VXLAN/EVPN architectures
Strong hands-on experience with Cisco platforms (Nexus, Catalyst, NX-OS, IOS-XE)
Proven experience with Network Access Control (NAC) solutions (Cisco ISE or equivalent)
Experience with network visibility tools (Gigamon or similar)
Deep understanding of TCP/IP and packet-level behavior
Ability to troubleshoot complex issues in high-pressure production environments
Vacancy posted 3 days ago
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